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The goal of image registration is to establish spatial correspondence between two or more images, traditionally through dense displacement fields (DDFs) or parametric transformations (e.g., rigid, affine, and splines). Rethinking the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Shiqi Huang , Tingfa Xu , Ziyi Shen , Shaheer Ullah Saeed , Wen Yan , Dean Barratt , Yipeng Hu

One of the fundamental challenges in supervised learning for multimodal image registration is the lack of ground-truth for voxel-level spatial correspondence. This work describes a method to infer voxel-level transformation from…

The scarcity of labeled data often impedes the application of deep learning to the segmentation of medical images. Semi-supervised learning seeks to overcome this limitation by exploiting unlabeled examples in the learning process. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-06-25 Jizong Peng , Marco Pedersoli , Christian Desrosiers

Semi-supervised learning has received considerable attention for its potential to leverage abundant unlabeled data to enhance model robustness. Pseudo labeling is a widely used strategy in semi supervised learning. However, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Tao Wang , Xinlin Zhang , Yuanbin Chen , Yuanbo Zhou , Longxuan Zhao , Tao Tan , Tong Tong

We propose Boundary-RL, a novel weakly supervised segmentation method that utilises only patch-level labels for training. We envision the segmentation as a boundary detection problem, rather than a pixel-level classification as in previous…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Weixi Yi , Vasilis Stavrinides , Zachary M. C. Baum , Qianye Yang , Dean C. Barratt , Matthew J. Clarkson , Yipeng Hu , Shaheer U. Saeed

Weakly supervised segmentation is an important problem in medical image analysis due to the high cost of pixelwise annotation. Prior methods, while often focusing on weak labels of 2D images, exploit few structural cues of volumetric…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Qian He , Shuailin Li , Xuming He

The success of deep learning methods in medical image segmentation tasks heavily depends on a large amount of labeled data to supervise the training. On the other hand, the annotation of biomedical images requires domain knowledge and can…

Computer Vision and Pattern Recognition · Computer Science 2021-09-30 Xinrong Hu , Dewen Zeng , Xiaowei Xu , Yiyu Shi

Supervised learning-based segmentation methods typically require a large number of annotated training data to generalize well at test time. In medical applications, curating such datasets is not a favourable option because acquiring a large…

Image and Video Processing · Electrical Eng. & Systems 2020-11-20 Krishna Chaitanya , Neerav Karani , Christian F. Baumgartner , Ertunc Erdil , Anton Becker , Olivio Donati , Ender Konukoglu

Training deep neural networks requires massive amounts of training data, but for many tasks only limited labeled data is available. This makes weak supervision attractive, using weak or noisy signals like the output of heuristic methods or…

Machine Learning · Computer Science 2017-12-08 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

Deep convolutional neural networks have achieved remarkable progress on a variety of medical image computing tasks. A common problem when applying supervised deep learning methods to medical images is the lack of labeled data, which is very…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Xiaomeng Li , Lequan Yu , Hao Chen , Chi-Wing Fu , Lei Xing , Pheng-Ann Heng

Volumetric magnetic resonance (MR) image segmentation plays an important role in many clinical applications. Deep learning (DL) has recently achieved state-of-the-art or even human-level performance on various image segmentation tasks.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yousuf Babiker M. Osman , Cheng Li , Weijian Huang , Nazik Elsayed , Zhenzhen Xue , Hairong Zheng , Shanshan Wang

Deep learning (DL) has proven highly effective for ultrasound-based computer-aided diagnosis (CAD) of breast cancers. In an automaticCAD system, lesion detection is critical for the following diagnosis. However, existing DL-based methods…

Image and Video Processing · Electrical Eng. & Systems 2023-06-13 Jian Wang , Liang Qiao , Shichong Zhou , Jin Zhou , Jun Wang , Juncheng Li , Shihui Ying , Cai Chang , Jun Shi

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg

Data augmentation is usually used by supervised learning approaches for offline writer identification, but such approaches require extra training data and potentially lead to overfitting errors. In this study, a semi-supervised feature…

Machine Learning · Computer Science 2019-05-28 Shiming Chen , Yisong Wang , Chin-Teng Lin , Weiping Ding , Zehong Cao

Recently, machine learning-based semantic segmentation algorithms have demonstrated their potential to accurately segment regions and contours in medical images, allowing the precise location of anatomical structures and abnormalities.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Yifei Wang , Chuhong Zhu

Traditional supervised learning methods have historically encountered certain constraints in medical image segmentation due to the challenging collection process, high labeling cost, low signal-to-noise ratio, and complex features…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Yifei Chen , Chenyan Zhang , Yifan Ke , Yiyu Huang , Xuezhou Dai , Feiwei Qin , Yongquan Zhang , Xiaodong Zhang , Changmiao Wang

State-of-the-art approaches for semantic segmentation rely on deep convolutional neural networks trained on fully annotated datasets, that have been shown to be notoriously expensive to collect, both in terms of time and money. To remedy…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Anton Obukhov , Stamatios Georgoulis , Dengxin Dai , Luc Van Gool

Semi-supervised medical image segmentation has shown promise in training models with limited labeled data and abundant unlabeled data. However, state-of-the-art methods ignore a potentially valuable source of unsupervised semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Qianying Liu , Paul Henderson , Xiao Gu , Hang Dai , Fani Deligianni

Semi-weakly supervised semantic segmentation (SWSSS) aims to train a model to identify objects in images based on a small number of images with pixel-level labels, and many more images with only image-level labels. Most existing SWSSS…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Wonho Bae , Junhyug Noh , Milad Jalali Asadabadi , Danica J. Sutherland

Weakly supervised segmentation has the potential to greatly reduce the annotation effort for training segmentation models for small structures such as hyper-reflective foci (HRF) in optical coherence tomography (OCT). However, most weakly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Olivier Morelle , Justus Bisten , Maximilian W. M. Wintergerst , Robert P. Finger , Thomas Schultz